Roll skia 64f4206fe906..20228946c9a1 (1 commits)

https://skia.googlesource.com/skia.git/+log/64f4206fe906..20228946c9a1

git log 64f4206fe906..20228946c9a1 --date=short --first-parent --format='%ad %ae %s'
2020-02-14 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader ac4e1d236088..f9f999f5a2eb (6 commits)

Created with:
  gclient setdep -r skia@20228946c9a1

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-lottie-ci-autoroll
Please CC borenet@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

TBR=borenet@google.com

Cq-Include-Trybots: skia/skia.primary:Housekeeper-PerCommit-InfraTests
Bug: None
Change-Id: Ic86b65960d5fed68733a91ddffd221c56a5bc932
Tbr: borenet@google.com
Reviewed-on: https://skia-review.googlesource.com/c/lottie-ci/+/270978
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index a5f6a5f..1195ffc 100644
--- a/DEPS
+++ b/DEPS
@@ -11,7 +11,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '64f4206fe9066af0534289d96fd0fb56a4b82265',
+  'skia_revision': '20228946c9a1e7aa7b0bff33dad3e72d16bbefd2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.